Sentinel Marine solutions
Sentinel Marine Solutions is a Croatian marine IoT company that provides connected-boat monitoring hardware (Boat Monitor BM-50), a cloud telematics platform, and mobile apps — serving private boat owners, 40+ OEM boat builders (e.g., Groupe Beneteau, Honda Marine), and 400+ charter fleets worldwide.
- Company typePrivate
- Founded2014
- HeadquartersZagreb, Croatia
- Headcount11–50
- GTM typeB2B and B2C
- OfferingHardware or Manufacturing
What Sentinel Marine solutions does
Sentinel Marine Solutions (legal entity Sentinel d.o.o.) is a privately held Croatian marine IoT company founded in 2014 and headquartered in Zagreb. It provides a connected-boating ecosystem centered on the Boat Monitor BM-50 hardware family (Standard and Lite variants) — onboard edge devices with built-in 4G, GPS, NMEA 2000 integration, and digital switching support — paired with a cloud telematics SaaS platform and mobile apps. The system delivers real-time battery, shore power, bilge, security, geofence, and engine/tank monitoring, plus remote control of onboard systems.
The company monetizes through a hybrid model: one-time hardware bundle sales (SafeGuard, SafeGuard Plus, Secure) that include the first year of a global connectivity subscription, recurring annual subscriptions thereafter, OEM/white-label licensing deals (notably SEANAPPS with Groupe Beneteau and Honda Marine Monitor), and partner services revenue through a certified installer network. Sentinel GO, a free 2025 mobile app, functions as a freemium entry point into the paid Sentinel Premium tier.
Its customer base spans four segments: private boat owners (peace-of-mind monitoring), boat builders and OEMs (white-label connected experiences; 40+ partners including Beneteau, Jeanneau, Prestige, Lagoon, Hanse, Oyster, Riviera, and Honda Marine), charter fleet operators (multi-vessel visibility; 400+ fleets across Europe), and certified service partners. The platform reports 45,000+ users, 25,000+ connected boats, and 60M+ miles of processed tracking data. Sentinel has historically operated as a founder/management-owned entity with only one disclosed institutional round (~$1.17M from South Central Ventures in October 2017) and a lean 11–50 employee footprint.
Sentinel Marine solutions firmographics
Firmographics- Name
- Sentinel Marine solutions
- Legal name
- Sentinel d.o.o.
- Website
- https://sentinelmarine.net
- Company type
- Private
- Founded year
- 2014
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Sentinel Marine Solutions is a Croatian marine IoT company that provides connected-boat monitoring hardware (Boat Monitor BM-50), a cloud telematics platform, and mobile apps — serving private boat owners, 40+ OEM boat builders (e.g., Groupe Beneteau, Honda Marine), and 400+ charter fleets worldwide.
- Ownership category
- akta.pro rank
Sentinel Marine solutions industry classification
Industry- Product category
- Marine Telematics and Connected Boat Monitoring
- NAICS
- Other Support Activities for Water Transportation (48839), Support Activities for Water Transportation (4883)
- SIC
- Industrial Instruments For Measurement, Display, And Control (3823), Measuring & Controlling Devices, Nec (3829), Computer Communications Equipment (3576)
- akta.pro primary industry
- Marine Sensors, Instrumentation & IoT (Condition Monitoring) (IMAJAJAI)
- akta.pro secondary industries
- Marine Automation, Control & PLC/SCADA Systems (IMAJAJAC), Marine Electrical Installation, Commissioning & Field Services (IMAJAJAL)
Keywords
Where Sentinel Marine solutions is headquartered
LocationHeadquarters
- HQ city
- Zagreb
- HQ country
- Croatia
- HQ region
- Europe
Offices1 record
Markets served
Sentinel Marine solutions business model
Business model- GTM type
- B2B and B2C
- Offering type
- Hardware or Manufacturing
- Cost components
- Technology or R&D, Supply Chain, Personnel, Operations, Marketing or Sales, Infrastructure
Revenue model
- Hardware Sales: Sale of Boat Monitor devices (BM-50 Standard and Lite) and sensor bundles (SafeGuard, SafeGuard Plus, Secure) as one-time hardware purchases with first-year global subscription included.
- Subscription (Global): Annual subscription model for global connectivity and real-time monitoring services after the first year. Subscription keeps boats connected for ongoing monitoring, alerts, and data access.
- OEM/White-label Licensing: Technology licensing and white-label partnerships with boat builders like Groupe Beneteau for SEANAPPS solution, Honda Marine Monitor, and other OEM partners embedding Sentinel technology into their vessels.
- Partner Services: Revenue opportunities for certified service partners through hardware sales, installations, and connected boating services.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Hybrid | Annual | SafeGuard Bundle - Essential marina/mooring protection |
| Hybrid | Annual | SafeGuard Plus Bundle - Advanced onboard visibility |
| Hybrid | Annual | Secure Bundle - Advanced security & intrusion detection |
| Freemium | Pay-as-you-go | Sentinel GO - Free hardware-free app |
Go-to-market motion4 records
Distribution channels6 records
Marketing channels8 records
Sentinel Marine solutions product offering
Product offeringCore offering
Sentinel Marine Solutions provides a connected boating ecosystem built around the proprietary Boat Monitor (BM-50) hardware with 4G and GPS, paired with a cloud-based telematics SaaS platform and mobile/web applications. The offering includes pre-configured sensor bundles (SafeGuard, SafeGuard Plus, Secure), the free Sentinel GO app, and the Sentinel Premium subscription service, delivering real-time remote monitoring of batteries, shore power, bilge water, security, GPS tracking, geofencing, NMEA 2000 engine data, and digital switching for boat owners, boat builders, and charter fleets. The company also licenses its technology as white-label solutions such as SEANAPPS (Groupe Beneteau) and Honda Marine Monitor.
Product overview
Sentinel Marine Solutions provides a connected boating ecosystem organized into two tiers: (1) Sentinel GO — a free, hardware-free mobile app offering checklists, trip logging, maintenance management, and document storage, serving as an accessible entry point; and (2) Sentinel Premium — a full solution pairing Boat Monitor hardware (BM-50 Lite and BM-50 Standard) with a subscription, enabling real-time monitoring, remote control, battery diagnostics, security sensors, NMEA 2000 integration, and digital switching. These are sold through pre-configured product bundles: SafeGuard (essential monitoring), SafeGuard Plus (NMEA 2000 integration and remote switching), and Secure (advanced security with motion and door sensors). The platform also integrates with third-party systems including CZone, EmpirBus, Simarine, SEANAPPS (Groupe Beneteau), and Honda Marine Monitor, and is available through Boat Builders (OEM), Fleet/Charter Operators, and Service Partners.
Differentiator
Problem solved
Functional benefit
Products and services
- Sentinel GO App Free, hardware-free mobile application providing an entry point into smart boating with checklists, automatic trip logging with GPS, maintenance management, document storage, and messaging with service partners — available without any Boat Monitor device.
- Sentinel Premium
Quantifiable outcome
- Sentinel system helped save lives of nine guests aboard a rental boat by detecting toxic hydrogen sulfide gas from battery short circuit
- +2 more outcomes
Companies that use Sentinel Marine solutions
Customer profileNamed customers17 records
Segments4 records
Ideal customer profiles4 records
Sentinel Marine solutions technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration6 records
Feature8 records
Sentinel Marine solutions partnerships and signals
Strategic signalPartnerships
Seven partnerships are on record, tiered core and flagship.
- Sentinel Partner ProgramcoreOfficial launch of Sentinel Partner Program at METS 2024 offering installers the opportunity to join the global certified partner network and benefit from exclusive access to installation jobs, marketing support, and product sales.
- Groupe BeneteauflagshipStrategic partnership to bring white-labeled SEANAPPS connected boat solution to Groupe Beneteau brands (BENETEAU, JEANNEAU, PRESTIGE). Sentinel provides the technology platform enabling boaters, dealers, and charter companies to connect to boats remotely. By 2025, all 9,000 boats built annually will be equipped with SEANAPPS as standard equipment.
- Honda MarinecorePartnership to create Honda Marine Monitor - a connected boat experience making boat and engine data accessible via website portal and smartphone app. Sentinel provides the connectivity gateway using marine telematics data enabling in-app monitoring and smart notifications. Focus on enhanced security and simplified engine maintenance for outboard boats.
- Greenline YachtscoreGreenline integrates Sentinel technology to monitor hybrid energy systems in their eco-friendly boats. The integration provides customers with smart and connected boats that support hybrid/electric propulsion monitoring.
- 40+ Boat Builder OEM PartnerscoreSentinel partners with over 40 boat builders including Solaris, Riviera, Flemings, XCS, Greenline, Sargo, Prestige, Delta, Zeelander, Beneteau, Jeanneau, Honda Marine, Oyster, Sabre, Lagoon, Delphia, Four Winns, Wellcraft, Sealine, Fjord, Ryck, Y Yachts, Moody, Dehler, Hanse and others who integrate Sentinel connected boat technology into their vessels.
- CZone, EmpirBus, SimarinecoreSentinel integrates with compatible digital switching and onboard monitoring systems including CZone, EmpirBus, and Simarine, allowing deeper onboard visibility and expanded control possibilities through existing onboard infrastructure.
- 400+ Fleet & Charter OperatorscoreOver 400 fleets and charter operators including Waypoint, Sunturist, Suncharted, Smartsail, Simple Sail, Seadrive, Sailing Forever, White Sail Club, Reful, Q Yachts, Prime Yachting, Pitter, Perfect Yachts, Pelsys, Noa Yachting, Navis Marine, Navigo, Navigare, Nautic Alliance, Multihull, Koro, In the Blue, Hermes Yachting, Feel Yachting, Euronautic, Euro Yacht, Venturi, Novak, EOL Yachting, Emu Yachting, Chilla Sailing, White Candor, Bruneko, Boomerang, Beta Charter, Belen Charter, Astarea, Angelina, Adria Yachting use Sentinel for fleet management.
Scale indicators7 records
Recent moves6 records
Expansion highlights6 records
Sentinel Marine solutions competitors and assessment
Company assessmentBroad incumbents
- Garmin: Global marine electronics leader (GPS, chartplotters, MFDs) with active connected-boat capabilities through its marine segment. Comparable as it sells navigation, monitoring, and connected features to boat builders and owners, though it operates across a much broader portfolio.
- Navico (Simrad, Lowrance, B&G): Leading marine electronics group with strong OEM penetration into boat builders via Simrad, Lowrance, and B&G brands. Comparable as it bundles connected features into navigation systems and serves the same OEM customer base as Sentinel.
- Raymarine (FLIR Systems): Major marine electronics brand offering chartplotters, radar, sonar, and integrated vessel monitoring. Comparable as a supplier of connected electronics to boat builders and owners, though its core focus is navigation/MFD rather than standalone IoT telematics.
Emerging players
- PredictWind: Marine weather routing and IoT connectivity provider with offshore tracking and satellite/cellular communication tools. Comparable as a marine data and connectivity provider for boat owners, though focused more on weather/navigation than hardware telematics.
- Vessel Vanguard: Yacht management and maintenance tracking platform that combines onboard sensors with a SaaS management dashboard for owners and operators. Comparable as a connected-boat maintenance/monitoring software provider with subscription model overlap.
Direct peers
- Digital Yacht: UK-based marine electronics company producing NMEA 2000 sensors, AIS, and connectivity products for boat builders and owners. Comparable in target market and product adjacency to marine telematics and onboard networking.
- Yacht Devices: Manufacturer of NMEA 2000 sensors, gateways, and marine monitoring hardware for boats and yachts. Comparable to Sentinel in offering NMEA 2000-integrated remote monitoring and boat telematics for OEMs and owners.
- Siren Marine: Direct competitor offering cellular-connected boat monitoring, GPS tracking, security, and remote control for boat owners and fleets. Highly comparable as a pure-play IoT telematics provider in the same connected-boat category as Sentinel.
- Maretron: NMEA 2000-based marine monitoring specialist offering vessel instrumentation and network components. Comparable to Sentinel's NMEA 2000 integration and onboard system visibility capabilities.
- GOST (Global Ocean Security Technologies): Marine security and monitoring provider offering vessel tracking, intrusion detection, and remote surveillance for yachts and commercial fleets. Comparable to Sentinel's Secure Bundle and security/safety positioning.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks5 records
Key highlights7 records
Customer concentration
Sentinel Marine solutions social profiles
Digital presenceSentinel Marine solutions financial estimates
Financial estimateRevenue estimate
Valuation estimate
Sentinel Marine solutions leadership team
Management profileNumber of profiles
Profiles4 records
Sentinel Marine solutions funding detail
Funding detailFunding overview
Funding rounds1 record
Investors1 record
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Sentinel Marine solutions M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Sentinel Marine solutions
What does Sentinel Marine solutions do?
Sentinel Marine Solutions provides a connected boating ecosystem built around the proprietary Boat Monitor (BM-50) hardware with 4G and GPS, paired with a cloud-based telematics SaaS platform and mobile/web applications. The offering includes pre-configured sensor bundles (SafeGuard, SafeGuard Plus, Secure), the free Sentinel GO app, and the Sentinel Premium subscription service, delivering real-time remote monitoring of batteries, shore power, bilge water, security, GPS tracking, geofencing, NMEA 2000 engine data, and digital switching for boat owners, boat builders, and charter fleets. The company also licenses its technology as white-label solutions such as SEANAPPS (Groupe Beneteau) and Honda Marine Monitor.
Is Sentinel Marine solutions a public or private company?
Sentinel Marine solutions is a private company. It is classified as venture growth investor backed and is currently operating.
When was Sentinel Marine solutions founded?
Sentinel Marine solutions was founded in 2014. It employs 11 to 50 people.
Where is Sentinel Marine solutions based?
Sentinel Marine solutions is headquartered in Zagreb, Croatia, in the Europe region.
How does Sentinel Marine solutions make money?
Four revenue lines are on record. Hardware Sales are the primary driver. The others are subscription (Global), OEM/White-label Licensing and partner Services.
Who are Sentinel Marine solutions's main competitors?
Broad incumbents on record are Garmin, Navico (Simrad, Lowrance, B&G) and Raymarine (FLIR Systems). Emerging players are PredictWind and Vessel Vanguard. Direct peers are Digital Yacht, Yacht Devices, Siren Marine, Maretron and GOST (Global Ocean Security Technologies).
Does Sentinel Marine solutions have an API?
No public API is recorded for Sentinel Marine solutions.
What industry is Sentinel Marine solutions in?
Sentinel Marine solutions's product category is Marine Telematics and Connected Boat Monitoring. Its primary akta.pro industry code is IMAJAJAI, Marine Sensors, Instrumentation & IoT (Condition Monitoring), with a secondary code of IMAJAJAC, Marine Automation, Control & PLC/SCADA Systems. Its NAICS code is 48839 and its SIC code is 3823.